from django.db import models
# 导入用于自定义用户模型类
from django.contrib.auth.models import AbstractUser
from meiduo_mall.utils.models import BaseModel


# 由于Django默认的User模型类中缺少记录手机号的字段
# 所以我们需要继承AbstractUser，并重写补充mobile字段用于记录用户手机号
class User(AbstractUser):
    """自定义用户模型类"""
    # 额外增加 mobile 字段，长度11位，号码唯一，别名
    mobile = models.CharField(max_length=11, unique=True, verbose_name='手机号')
    # 新增 email_active 字段，用于记录邮箱是否激活, 默认为 False: 未激活
    email_active = models.BooleanField(default=False, verbose_name='邮箱验证状态')
    # 新增默认收货地址
    default_address = models.ForeignKey('Address', related_name='users', null=True, blank=True,
                                        on_delete=models.SET_NULL, verbose_name='默认收货地址')

    # 对当前表进行相关设置:
    class Meta:
        db_table = 'tb_users'
        verbose_name = '用户'
        verbose_name_plural = verbose_name

    # 在 str 魔法方法中, 返回用户名称
    def __str__(self):
        return self.username


# 定义收货地址的模型类
class Address(BaseModel):
    """用户地址"""
    user = models.ForeignKey('users.User', on_delete=models.CASCADE, related_name='addresses', verbose_name='用户')
    province = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='province_addresses',
                                 verbose_name='省')
    city = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='city_addresses', verbose_name='市')
    district = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='district_addresses',
                                 verbose_name='区')
    title = models.CharField(max_length=20, verbose_name='地址名称')
    receiver = models.CharField(max_length=20, verbose_name='收货人')
    place = models.CharField(max_length=50, verbose_name='地址')
    mobile = models.CharField(max_length=11, verbose_name='手机')
    tel = models.CharField(max_length=20, null=True, blank=True, default='', verbose_name='固定电话')
    email = models.CharField(max_length=30, null=True, blank=True, default='', verbose_name='电子邮箱')
    is_deleted = models.BooleanField(default=False, verbose_name='逻辑删除')

    class Meta:
        db_table = 'tb_address'
        # 设置默认 已更新时间降序
        ordering = ['-update_time']
